Achilles tendon reflex

…Clinically, it is also called a tendon reflex because the tendon is struck when the muscle is stretched. Stretch reflexes, like the patellar tendon reflex and the Achilles tendon reflex (a reflex in which the gastrocnemius and soleus muscles contract when the Achilles tendon is struck), are seen in normal animals, but they are generally difficult to occur because they are influenced by higher centers. When the higher centers are damaged and the inhibitory influence is weakened, the stretch reflex becomes enhanced and occurs continuously and repeatedly. …

*Some of the terminology that refers to "Achilles tendon reflex" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…臨床的には筋肉を伸展させる際に腱をたたくので腱反射ともいわれる。伸展反射は，膝蓋腱反射やアキレス腱反射(アキレス腱をたたくと，腓腹筋やひらめ筋に収縮が起こる反射)のように，正常動物でもみられるが，上位中枢からの影響を受けていて一般に起こりにくい。上位中枢が障害され，抑制性の影響が弱まると，伸展反射は亢進し，持続的に，また反復して起こる。…

※「アキレス腱反射」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報